Your boss is supposed to be more intelligent and educated than you are. That isn't always the case though. Some bosses feel threatened by that information. They may feel as though you are working to take their job. There isn't any reason that a boss wouldn't feel a bit threatened by an employee who is more intelligent and educated than they are.
This situation won't work out well for you. Even though you may be more intelligent and educated than your boss, he/she is still your boss. You have to work under this person everyday. It would suit you well if you didn't flaunt your intelligence and education to the boss. If you want to keep your job, it is better to just get along with your boss.
Sometimes, people who are well educated and extremely intelligent think they own the world. The truth is, you are just a small part of the world. You education and intelligence can serve you well, but it is all in how you handle it. It is possible that you make the boss feel threatened because you come off as a know it all. That doesn't serve you well in the position you are in. Remember, if they are your boss, they had to have some intelligence and education to get where they are. You should always show respect to your boss no matter how much smarter and educated you are.
If you want your knowledge to take you places, it is a good idea to realize that you have to play the game to get there sometimes. Treat your boss with respect and do what you are supposed to do. Don't constantly try to one up your boss by suggesting a better way to do it other than his/her way. Although you may be right, it just isn't going to fare well with your career advancement. It is alright to offer advice at times, just be careful how you handle it. You could be suggesting yourself right out of a job.
Give your boss some credit. You may be an employee who is more intelligent and educated than your boss, but in the end, you still answer to him/her. Don't commit career suicide to prove you are better suited for the bosses job than he/she is. Your boss holds your career in his/her hands. He/she has more power than you do and could do things to sabotage your job. In other words, if you are more intelligent and educated than your boss, don't make them feel threatened by it.